used to check if a new definition overriding a previous
definition is actually the same definition via a ant or
antcall command
* remove pointless check for antlib: in setUri
git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275106 13f79535-47bb-0310-9956-ffa450edef68
Also split Definer.java in a base class (DefBase) to allow
it to be used for other defining tasks
Also add AntlibInterface to allow antlib to set uri and
classloader for other tasks/types that Definer.
Bugzilla: 19897
git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275064 13f79535-47bb-0310-9956-ffa450edef68
Antoine Levy-Lambert
Peter Reilly